What were you trying to do that didn't work?

Check all the menus and sub-menus of Firefox flatpak. Observed some garbage characters for some menu option in Firefox

What is the impact of this issue to you?

Strings in Ja_JP not displayed properly in Firefox sub-menu options

Please provide the package NVR for which the bug is seen:

• RHEL-10.0-20250304.2
• ID - org.mozilla.Firefox
• Version - 128.7.0 

How reproducible is this bug?:

Always

Steps to reproduce

1.  Install RHEL - 10 in Ja_JP locale
2.  Install Firefox flatpak  and open Firefox
3.  Try to open few sub-menu options as below -
4.  Bookmarks -> Manage bookmarks, History -> Show all history, Tools ->  Downloads, Tools -> Page info
5.  Garbage characters are seen on top of each screens (screens from step.5)

Expected results

No garbage characters

Actual results

Garbage characters are seen